uke rob,I wouldn't worry about 'strumming patterns'.
Some newbies make far too much of them! If the
sheet you have tells you to strum X number of times
per bar/per line whatever,it may be what the original
artist did BUT IT MAY NOT SUIT YOU and your style!
I teach a beginners class and we learn the chords and
the lyrics.Basically we strum in 4/4 time for everything
AT FIRST! Then,as you learn the song/tune you may
decide to vary to a different 'pattern'.The main thing is
to play in a way that is comfortable for you without too
much 'technological input'.Play it,strum it and enjoy it,
don't waste your time and your life analysing it!